# Update Container Custom Columns

## Overview

You can use this endpoint to update the values of one or multiple existing custom columns for a single Shipping Container. In order to do that, you must:

- Be an authenticated user

For information on how you can authenticate, see: [Authentication](https://developer.sellercloud.com/dev-article/authentication/).

## Endpoint

An example of such an endpoint for server XX is:

```
https://xx.api.sellercloud.com/api/ShippingContainers/{id}/CustomColumns
```

For your server, the endpoint will be:

```
https://{your_server_id}.api.sellercloud.com/api/ShippingContainers/{id}/CustomColumns
```

## Request

- **Method Type:**  **HttpPut**  
- **Authorization:** Use  **Bearer Token**  + token received from token authentication  
- **Header info:**  **Content-Type: application/json**  
- **Request Parameter:** Valid ID of an existing **Shipping Container**.  
- **Body data** – a list of Custom Columns:

|     |     |     |     |
| --- | --- | --- | --- |
| **Parameter** | **Data Type** | **Description** | **Is Required** |
| ColumnName | string | Name of the existing column. This is **not** the display name seen in the UI. This should be the Column Name instead. | Yes |
| Value | string | The new value of the custom column. Writing **“”** will remove the existing value. Providing **Null** will return an error. | Yes |

## Request Body

```json
{
  "CustomColumns": [
    {
      "ColumnName": "string",
      "Value": {}
    }
  ]
}
```

## Response

- If a server error appears, then the response will be with status code **500 => Internal Server Error.**  
- If updating the value of the custom column is successful, the status code will be **OK 200.**